Winterlight,
I will totally defer to your experience; even though everything I have
learned says "NO."
Different strokes for different folks.
I am not willing to allow common (auto)/special (please define)
batteries into the space I live in.
Yes, my security system uses a 'sealed' 12v battery. I change it as
necessary and just live with it.
I have never had a security system before.
OK, maybe not all ups's have 2 batteries. I was replying to you my life
with APC since 1995. No harm,
no foul. All of my ups's have 2ea=12vdc batteries. Sorry. This is my world.
My security system has one /sealed/ 12vdc battery.
My HD Road King has one /sealed/12vdc battery. My 1949 Indian has one
/lead-acid/ 6vdc battery (as soon
as I find it!). My Lawn tractor has one /Lead-acid/ batteryone 12vdc
battery.
On 10/19/2013 17:43, Winterlight wrote:
Not all UPS have two batteries.
Yea, so what? I have not figured out how APC gets useful current out of
one 12vdc battery!
I'll give this point to you.
Unless you know the chemistry, you can create problems. Just saying!
I have a old APC 900VA = 500watts that uses a single 12 volt battery.
A gas cloud explosion is extremely unlikely, particularly in a
ventilated room. I have had two 850 Cold Cranking Amp car batteries
... a Motocraft and a Interstate that have been sitting in my office
for years. At times I have had/used them in my bedroom. They are
hooked up to a solar trickle charger and I use them with an invertor
whenever something like a wild fire kills the power for an extended
period of time. I have never had a problem. I live in a area where the
windows are always open and most of the time I have a fan running to
combat humidity. I suppose you get to use your science for your
current situation.
At 03:45 AM 10/19/2013, you wrote:
Well, yes, I suppose you could use a pair of auto batteries. Yes, you
would
need two in series (24vdc). But why?
Don't auto batteries bubbleoff hydrogen gas as they charge? Why would
you wish to create a gas cloud inside a home? I'm pretty sure that ups's
still use emc power contactors to do conversion switching. One spark
and boom!
Perhaps some of the newer battery chemistry's my help avoid this
trouble, but I
wonder. I only charge my auto/lawn tractor batteries outside in the
driveway.
Just a thought. I'll defer to the experts, however.
Duncan
On 10/18/2013 21:34, Winterlight wrote:
Anybody here ever hook up a car battery to a UPS?
